Zobrazeno 1 - 10
of 10
pro vyhledávání: '"V. I. Haneychuk"'
Publikováno v:
Astrophysics. 63:399-407
The relationship between the magnetic fluxes and areas of coronal holes (CH) at mid and low latitudes |φ |< 60° and the mean magnetic field (MMF) of the sun over the period from January 19 through December 12, 2012, is studied using ultraviolet ima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23da6fbc2931b52b7e3d9cb05057e75a
https://doi.org/10.1007/s10511-020-09644-1
https://doi.org/10.1007/s10511-020-09644-1
Autor:
Z. S. Akhtemov, V. I. Haneychuk, Gao Ran, St. Petersburg, Russia, Y. T. Tsap, CrAO Ran, Ar Crimea, Nauchny, Russia
Publikováno v:
Proceedings of the 23rd All-Russia Conference on Solar and Solar-Terrestrial Physics.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30e781fbdfde0dea1db19765d1070a8d
https://doi.org/10.31725/0552-5829-2019-23-26
https://doi.org/10.31725/0552-5829-2019-23-26
Autor:
V. A. Kotov, V. I. Haneychuk
Publikováno v:
Bulletin of the Crimean Astrophysical Observatory. 104:45-51
Doppler measurements of the photosphere of the entire Sun carried out at the Crimean Astrophysical Observatory (CrAO) in 1974–2007 by the differential technique showed the presence of an enigmatic periodicity of P 1 = 159.967(4) min. The phase of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::978f740400e9eb2857fab7c53114ade2
https://doi.org/10.3103/s0190271708010075
https://doi.org/10.3103/s0190271708010075
Publikováno v:
Astronomy & Astrophysics. 403:1115-1121
New data on the mean magnetic field of the Sun (MMFS) as a star measured at the Crimean Astrophysical Observatory in 1998–2001 are presented. The 34-year time series of the MMFS using similar data from three other observatories (1968–2001, with t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f016471fef92430f95ebfeb80a762df0
https://doi.org/10.1051/0004-6361:20030426
https://doi.org/10.1051/0004-6361:20030426
Publikováno v:
Astronomical & Astrophysical Transactions. 16:15-30
Long-term observations of global oscillations of the Sun revealed the existence of the phasecoherent periodicity P 0 = 160.0101 ± 0.0001 min seen in the Doppler shift of a photospheric spectral line. The true nature of the phenomenon is yet unknown.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a49a6ac71adfdcbd6f3c06a455cf003
https://doi.org/10.1080/10556799808208139
https://doi.org/10.1080/10556799808208139
Publikováno v:
The Astrophysical Journal Supplement Series. 116:103-117
Measurements of the mean magnetic field of the Sun (MMFS) seen as a star were regularly conducted at the Mount Wilson Observatory from 1970 October through 1982 December. A listing is presented of all these data (2457 daily values) suitable for compa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffeba79f069e0db48a9ee1935e4961fa
https://doi.org/10.1086/313094
https://doi.org/10.1086/313094
Publikováno v:
The Astrophysical Journal. 488:195-201
The hypothesis that the luminosity of the nucleus of the Seyfert 1 galaxy NGC 4151 varies with a period of P0 ≈ 160.0101 minutes is revised. In 1987-1994 a series of photometric observations of the NGC 4151 has been carried out in the U and V filte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e45512377f7da727570097608eea468d
https://doi.org/10.1086/304672
https://doi.org/10.1086/304672
Publikováno v:
Solar Physics. 176:45-57
The ‘CrAO-WSO’-network experiment was designed for detection of low-degree oscillations of the Sun representing either its normal g -modes or those driven by, e.g., rapid (hypothetical) rotation of the central solar core. The Doppler-shift measur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2efd9b5673627b17d75bbbb7deada6dc
https://doi.org/10.1023/a:1004936013133
https://doi.org/10.1023/a:1004936013133
Publikováno v:
Astronomische Nachrichten. 315:333-342
The analysis of all the available data between 1968 and 1991 on rapid variability of optical and X-ray luminosity of three AGNs, NGC 3516, NGC 4151 and 3C 273, shows the presence of small-amplitude (˜ 1 %) but statistically confident (≈ 5s) period
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8e95918906689b99e45ba9db6d4408c3
https://doi.org/10.1002/asna.2103150503
https://doi.org/10.1002/asna.2103150503
Publikováno v:
Solar Physics. 133:95-102
The 1974–1988 Crimean measurements of the solar line-of-sight velocity continue to show the presence of a statistically significant periodicity P1 = 160.009 (±) min with an average harmonic amplitude of about 21 cm s−1. The period is supposed to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5e7168d6f47e7347c0b2bf21b33e9fe
https://doi.org/10.1007/bf00149829
https://doi.org/10.1007/bf00149829